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RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Minimum Sealed Box Volume
This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Maximum Sealed Box Volume
This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
 
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Xmax (millimeters)
Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.
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Infinity Kappa 103WDSSI (INFSUBKA103WDSSIAM)

1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

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Infinity Kappa 103WDSSI (INFSUBKA103WDSSIAM)

1350W Peak (450W RMS) 10” Kappa Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1350 watts
• RMS Power: 450 watts
• Impedance: Single 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 6-1/4"
• Sensitivity: 91 dB

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FREE 1-day shipping to OH. Get it Wed, Nov. 19
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VIP Product Get $30.00 in rewards to spend later

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$299.99

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Infinity Kappa 83WDSSI (INFSUBKA83WDSSIAM)

1200W Peak (400W RMS) 8” Kappa Series Single 2-or 4-ohm Car Subwoofer

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Infinity Kappa 83WDSSI (INFSUBKA83WDSSIAM)

1200W Peak (400W RMS) 8” Kappa Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Single 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 5.42"
• Sensitivity: 91 dB

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VIP Product Get $12.90 in rewards to spend later

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$129.00

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Like New from: $116.10

Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM)

1500W Peak (500W RMS) 12” Kappa Series Single 2 or 4-ohm Subwoofer

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Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM)

1500W Peak (500W RMS) 12” Kappa Series Single 2 or 4-ohm Subwoofer

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 7"
• Sensitivity: 92 dB

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$329.95

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Used from: $230.96 Like New from: $289.95

Infinity Reference 1270

1100W Peak (275W RMS) 12" Reference Series Single 2-or 4-ohm Car Subwoofer

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Infinity Reference 1270

1100W Peak (275W RMS) 12" Reference Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1100 watts
• RMS Power: 275 watts
• Impedance: Single 2 or 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 6-1/2"
• Sensitivity: 93 dB

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$139.95

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Infinity Reference 1022MLW

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and White Grille

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Infinity Reference 1022MLW

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and White Grille

• Peak Power: 750 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 4-7/16"
• Sensitivity: 89 dB

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$254.95

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Infinity Reference 1022MLT

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and Titanium Grille

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Infinity Reference 1022MLT

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and Titanium Grille

• Peak Power: 750 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 10.47"
• Sensitivity: 89 dB

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $269.95 Details
$254.95

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Used from: $178.46 Like New from: $203.96

Infinity Reference 1022MLT (Open Box, Great)

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and Titanium Grille

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Infinity Reference 1022MLT (Open Box, Great)

750W Peak (250W RMS) 10" Reference Series Single 4-ohm Marine Subwoofer with RGB LED and Titanium Grille

• Peak Power: 750 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 10.47"
• Sensitivity: 89 dB

Save an Extra 10% on Open Box at Checkout!
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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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$178.46

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• Peak Power: 750 watts
• RMS Power: 250 watts
• Impedance: Single 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 10.47"
• Sensitivity: 89 dB

Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) (Like New - Open Box)

1500W Peak (500W RMS) 12” Kappa Series Single 2 or 4-ohm Subwoofer

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Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) (Like New - Open Box)

1500W Peak (500W RMS) 12” Kappa Series Single 2 or 4-ohm Subwoofer

• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 7"
• Sensitivity: 92 dB

Save an Extra 10% on Open Box at Checkout!
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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $339.95 Details
$289.95

In stock

Only 1 Left!

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• Peak Power: 1500 watts
• RMS Power: 500 watts
• Impedance: 2 or 4 ohm
• Glass Fiber Cone
• Rubber Surround
• Mount depth: 7"
• Sensitivity: 92 dB

Infinity Reference 123W (INFSUBRF123W) (Like New (Open Box))

1200W Peak (400W RMS) 12" Reference Series Single 2-or 4-ohm Car Subwoofer

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Infinity Reference 123W (INFSUBRF123W) (Like New (Open Box))

1200W Peak (400W RMS) 12" Reference Series Single 2-or 4-ohm Car Subwoofer

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Single 2 or 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 5-1/2"
• Sensitivity: 86 dB

Save an Extra 10% on Open Box at Checkout!
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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $199.95 Details
$135.96

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Only 2 Left!

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• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Single 2 or 4 ohm
• Polypropylene cone
• Rubber surround
• Mount depth: 5-1/2"
• Sensitivity: 86 dB

Infinity Primus 1270 (INFPRIMUS1270AM) (Open Box, Great)

1200W Peak (300W RMS) 12" Primus Series Single 4-ohm Subwoofer

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Infinity Primus 1270 (INFPRIMUS1270AM) (Open Box, Great)

1200W Peak (300W RMS) 12" Primus Series Single 4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5-15/16"
• Sensitivity: 91 dB

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $119.95 Details
$69.97

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Only 1 Left!

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• Peak Power: 1200 watts
• RMS Power: 300 watts
• Impedance: Single 4 ohm
• Polypropylene Cone
• Rubber Surround
• Mount depth: 5-15/16"
• Sensitivity: 91 dB

Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) + FREE $100 Gift Card

12” Subwoofer w/SSI™ (Selectable Smart Impedance)

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Infinity Kappa 123WDSSI (INFSUBKA123WDSSIAM) + FREE $100 Gift Card

12” Subwoofer w/SSI™ (Selectable Smart Impedance)

• Peak Power: 1500W
• RMS Power: 500W
• Damped glass-fiber cones
• Aero-cooled voice coil

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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$329.95

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• Peak Power: 1500W
• RMS Power: 500W
• Damped glass-fiber cones
• Aero-cooled voice coil

Lowest price in 30 days

Infinity KAPPA83WDSSI - New (Damaged Packaging, Product A+)

1200W Peak (400W RMS) 8” KAPPA Series SSI Selectable 2/4-ohm Subwoofer

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Infinity KAPPA83WDSSI - New (Damaged Packaging, Product A+)

1200W Peak (400W RMS) 8” KAPPA Series SSI Selectable 2/4-ohm Subwoofer

• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Dual 2 or 4 ohm
• Glass Fiber Cone
• Mount depth: 5.157"
• Sensitivity: 91 dB

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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$116.10

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• Peak Power: 1200 watts
• RMS Power: 400 watts
• Impedance: Dual 2 or 4 ohm
• Glass Fiber Cone
• Mount depth: 5.157"
• Sensitivity: 91 dB

Infinity Reference 1022MLT - New (Damaged Packaging, Product A+)

750W Max (250W RMS) 10" Reference Marine Series Single 4 ohm Subwoofer

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Infinity Reference 1022MLT - New (Damaged Packaging, Product A+)

750W Max (250W RMS) 10" Reference Marine Series Single 4 ohm Subwoofer

• 750 Watts Max Each, 250 Watts RMS Each
•Integrated RGB Lighting
• Polypropylene Cone
• 4 ohm Impedance
• Sensitivity: 89dB
• IPX5 Marine Rated

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FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $269.95 Details
$203.96

In stock

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• 750 Watts Max Each, 250 Watts RMS Each
•Integrated RGB Lighting
• Polypropylene Cone
• 4 ohm Impedance
• Sensitivity: 89dB
• IPX5 Marine Rated

Lowest price in 30 days

Infinity INFSUBKA123WDSSIAM (Sold Individually) - Open Box, Great

1500W Peak (500W RMS) 12" Kappa Series Selectable 2- or 4-ohm Subwoofer

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Infinity INFSUBKA123WDSSIAM (Sold Individually) - Open Box, Great

1500W Peak (500W RMS) 12" Kappa Series Selectable 2- or 4-ohm Subwoofer

• Peak Power: 1500W
• RMS Power: 500W
• Damped glass-fiber cones
• Aero-cooled voice coil

shipping truck icon
FREE 1-day shipping to OH. Get it Wed, Nov. 19

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Was $369.95 Details
$230.96

In stock

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• Peak Power: 1500W
• RMS Power: 500W
• Damped glass-fiber cones
• Aero-cooled voice coil

 
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